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Hexagonal boron nitride is widely used as a substrate for two-dimensional materials in both electronic and photonic devices. Here, we demonstrate that two-dimensional hexagonal boron nitride is also an ideal substrate for one-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-01-01 N. Fang , K. Otsuka , A. Ishii , T. Taniguchi , K. Watanabe , K. Nagashio , Y. K. Kato

The emerging interest in van der Waals heterostructures as new materials for opto-electronics and photonics poses questions about their stability and structure-property relations. In the framework of density-functional and many-body…

We investigate the impact of the encapsulation with hexagonal boron nitride (h-BN) on the Raman spectrum of few layer black phosphorus. The encapsulation results in a significant reduction of the line width of the Raman modes of black…

Mesoscale and Nanoscale Physics · Physics 2017-11-23 J. M. Urban , M. Baranowski , A. Surrente , D. Wlodarczyk , A. Suchocki , G. Long , Y. Wang , L. Klopotowski , N. Wang , D. K. Maude , P. Plochocka

Graphene/hexagonal boron nitride (G/$h$-BN) heterostructures offer an excellent platform for developing nanoelectronic devices and for exploring correlated states in graphene under modulation by a periodic superlattice potential. Here, we…

Mesoscale and Nanoscale Physics · Physics 2018-03-14 Jiayu Li , Li Lin , Guang-Yao Huang , N. Kang , Jincan Zhang , Hailin Peng , Zhongfan Liu , H. Q. Xu

Zinc-based nitride CaZn2N2 films grown by molecular beam epitaxy (MBE) with a plasma-assisted active nitrogen-radical source are promising candidates of next-generation semiconductors for light-emitting diodes and solar cells. This nitride…

Materials Science · Physics 2019-08-28 Masatake Tsuji , Kota Hanzawa , Hiroyuki Kinjo , Hidenori Hiramatsu , Hideo Hosono

Ferromagnetic contacts are widely used to inject spin polarized currents into non-magnetic materials such as semiconductors or 2-dimensional materials like graphene. In these systems, oxidation of the ferromagnetic materials poses an…

Mesoscale and Nanoscale Physics · Physics 2016-03-01 Simon Zihlmann , Péter Makk , C. A. F. Vaz , Christian Schönenberger

Granular $\text{L}1_0$-FePt thin films with small columnar grains are essential for heat-assisted magnetic recording media. While hexagonal boron nitride(h-BN) has proven effective for promoting columnar FePt grains, we explored multilayer…

Materials Science · Physics 2024-04-23 B. S. D. Ch. S. Varaprasad , Chengchao Xu , Brandon Reese , David E. Laughlin , Jian-Gang , Zhu

Large-area bilayer graphene (BG) is grown epitaxially on Ru(0001) surface and characterized by low temperature scanning tunneling microscopy. The lattice of the bottom layer of BG is stretched by 1.2%, while strain is absent from the top…

Materials Science · Physics 2014-06-05 Yande Que , Wende Xiao , Xiangmin Fei , Hui Chen , Li Huang , S. X. Du , H. -J. Gao

Phosphorene, a single layer of black phosphorous (BLK-P), has a significant potential for flexible and tunable electronics, but attempts to grow it epitaxially have been unsuccessful to date. Meanwhile, hexagonal blue phoshorous (BL-P) has…

Materials Science · Physics 2019-09-17 Daniel Hashemi , Gene Siegel , Michael Snure , Stefan C. Badescu

We investigated the possibility of superconductivity in monolayer hexagonal boron nitride (h-BN) doped using each group-1 (Li, Na, K) and group-2 (Be, Mg, Ca, Sr, Ba) atom via ab-initio calculations. Consequently, we reveal that Sr- and…

Materials Science · Physics 2020-07-20 Nao. H. Shimada , Emi Minamitani , Satoshi Watanabe

We report the growth of high-quality triangular GaN nanomesas, 30-nm thick, on the C-face of 4H-SiC using nano selective area growth (NSAG) with patterned epitaxial graphene grown on SiC as an embedded mask. NSAG alleviates the problems of…

Luminescent defect-centers in hexagonal boron nitride (hBN) have emerged as a promising 2D-source of single photon emitters (SPEs) due to their high brightness and robust operation at room temperature. The ability to create such emitters…

We report on quantum transport measurements on etched graphene nanoribbons encapsulated in hexagonal boron nitride (hBN). At zero magnetic field our devices behave qualitatively very similar to what has been reported for graphene…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 A. Epping , C. Volk , F. Buckstegge , K. Watanabe , T. Taniguchi , C. Stampfer

The strong excitonic emission at 5.75 eV of hexagonal boron nitride (h-BN) makes this material one of the most promising candidate for light emitting devices in the far ultraviolet (UV). However, single excitons occur only in perfect…

Finding an effective and controllable way to create a sizable energy gap in graphene-based systems has been a challenging topic of intensive research. We propose that the hybrid of boron nitride and graphene (h-BNC) at low BN doping serves…

Mesoscale and Nanoscale Physics · Physics 2023-12-01 Chih-Piao Chuu , Wei-En Tseng , Kuan-Hung Liu , Ching-Ming Wei , Mei-Yin Chou

In the wide world of 2D materials, hexagonal boron nitride (hBN) holds a special place due to its excellent characteristics. In addition to its thermal, chemical and mechanical stability, hBN demonstrates high thermal conductivity, low…

In this paper, we present an experimental study of $\text{L1}_0$-FePt granular films with crystalline/amorphous boron nitride (BN) grain boundary materials for heat assisted magnetic recording (HAMR). It is found that an adequate RF…

Materials Science · Physics 2023-07-11 Chengchao Xu , B. S. D. Ch. S Varaprasad , David E. Laughlin , Jian-Gang , Zhu

Graphene, consisting of an inert, thermally stable material with an atomically flat, dangling bond-free surface is by essence an ideal template layer for van der Waals heteroepitaxy of two-dimensional materials such as silicene. However,…

Hexagonal boron nitride (hBN) is an emerging layered material that plays a key role in a variety of two-dimensional devices, and has potential applications in nanophotonics and nanomechanics. Here, we demonstrate the first cavity…

We propose a theory of optical absorption in monolayer graphene-hexagonal boron nitride (hBN) heterostructures. In highly oriented heterostructures, the hBN underlay produces a long-range moir\'e superlattice potential for the graphene…

Mesoscale and Nanoscale Physics · Physics 2013-12-10 D. S. L. Abergel , J. R. Wallbank , Xi Chen , M. Mucha-Kruczyński , Vladimir I. Fal'ko
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